Machine for polishing razor-blades.



J. E. DREW.

MACHINE FOR POLISHING RAZOR BLADES;

APPLICATION FILED JUNE 30, 1910.

2 SHEETS-SHEET 1.

1,046, 1 57. Patented Dec. 3, 1912.

I Inzjenfir 1 MM www COLUMBIA PLANOGRAPH 60., WASHINGTON. D c.

J, DREW. MACHINE FOR POLISHING RAZOR BLADES.

APPLIOATION FILED JUNE 30, 1910.

1,046,157. 7 Patented Dec. 3, 1912.

2 SHEBTSSHEET 2.

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IINITEE STATES PATENT OFFICE.

JOHN E. DREW, 0F JERSEY CITY, NEW JERSEY, ASSIGNOR T0 DURHAM DUPLEX RAZOR COMPANY, or new YORK,

N. Y., A CORPORATION OF NEW YORK.

MACHINE FOR POLISHING RAZOR-BLADES.

Specification of Letters Patent.

Patented Dec. 3, 1912.

Application filed June 30, 1910. Serial No. 569,708.

To all whom it may Concern Be it known that I, JOHN E. Dnnw, a citizen of the United States, residing at Jersey City, county of Hudson, and State of New Jersey, have invented a new and useful Improvement in Machines for Polishing Razor-Blades, of which the following is a specification.

This invention relates to an improvement in machines for polishing razor blades, and it has for its main object the production of a machine of this type in which the blades are cheaply, rapidly and uniformly polished.

The invention consists in certain constructions and combinations which will be hereinafter fully described and then specifically set forth in the claims hereunto appended.

In the accompanying drawings which form a part of this specification and in which like characters of reference indicate the same parts, Figure 1 is a plan view of a machine constructed in accordance with the invention, Fig. 2 is a side elevation of the structure shown in'Fig. 1, and Figs. 3 to 9 inclusive are fragmentary detail views of various parts of the structure shown in Figs. 1 and 2 and illustrating the operation'of the device.

In carrying the invention into effect, there is provided a polishing brush 1 fast upon one end of a shaft 2 which is journaled in bearings 3 and t formed on one end of a swinging bracket 5. This bracket 5 is provided, at the end opposite the brush, with bosses 6 and 7 which are secured to a shaft 8 journaled in bearings 9 and 10 mounted on the main frame 11 of the machine. The end of the shaft 2 opposite the brush carries a pulley 12 over which runs tating the brush. This belt also runs over a pulley 14 loose on the shaft 8 outside the frame. Integral with this pulley is another pulley 15 over which runs a belt 16 deriving its motion from an overhead shaft not shown.

Means including a traveling support for presenting blades to the brush, and means including a traveling member for feeding blades to the presenting means are provided, and these means may vary within wide limits. In the best constructions and as shown.v however, the feeding means includes awheel 18 mounted on a shaft 19 journaled in bearings 20 and 21 formed on the main frame of the machine. This wheel is provided with a a belt 13 for roseries of pins 22 fixed in its periphery and adapted to engage blades, or perforations in blades when perforated blades are to be polished, to feed them toward the presenting means and brush. Cooperating with this wheel is a curved stationary guide 23 extending from a point over the wheel to a point under the wheel adjacent the presenting means. As the wheel 18 turns, a blade caught by one of the pins 22 is moved under the guide 23, which keeps it in engagementwith the pin during the rotation of the wheel to the end of the guide.

In the device selected to illustrate the invention, the presenting means includes a wheel 2% mounted on a shaft 25 journaled in the main frame. The wheel is located immediately under the brush which touches its periphery. A central groove 26 isout on the periphery of the wheel 24, and this groove is of a width sufficient to receive a blade. On either side of this groove is a side groove which is shallower than the central groove. Running in the side grooves 27 are two belts 28 of steel which also run over a wheel 29 mounted on a shaft 30 journaled in the main frame. This shaft carries a power pulley 31 driven by a belt 32 from an overhead shaft not shown. The belts are wider than the side grooves 27, and consequentlyoverlie the edges of the blades lying in the central groove 26 and serve to hold them securely in position while they are passing under the brush. The wheel 29 has a central flange 33 on its periphery which is wider than the central groove 26 of the wheel 24. The belts, when passing over the wheel 29 are therefore farther apart than when passing over the wheel 24;. This is necessary in order to' permit them to pass alongside the stationary guide and get over blades advancing in the guide. Figs. i, 5, 8 and 7 show how this is done. In Fig. 4. a blade is shown in position Within the guide just after it has entered the same. In Fig. 5, the blade is at the lower part of the wheel 18 and the belts are passing alongside the guide. In Fig. 6, a series of blades are shown in process of transfer from the wheel 18 and guide to the presenting wheel 24. In Fig. 7, a blade is shown in position in the central groove of the wheel 24, held in position by the overlying edges of the belts. As the blades pass under the brush, covered with polishing slush, they are polished fall over the point stops them.

thereby and 7 carried farther along by the I the structure by means of which the invenwheel and belts.

For the purpose of collecting the polished blades without handling them individually, a stacking device is employed, and this stacking device may vary Within wide limits. As shown, however, the stacking device includes a post 34 mounted on a base 35 standing on the This postis shaped to engage the perforations of the blades caused to fall over its point and permit them to slide down its sides and stack in a vertical pile. For the purpose of causing the polished blades to of the post 34, there is provided an abutment 36 standing between the belts adjacent the post. As blades are carried by the belts from the wheel 24, they come into contact with the abutment which At this point, the belts are spread apart by means of. a roller 37 mounted on a stud 38 secured in the upper end of a bracket 39 carriedby the frame. The belts ride on the sides of this roller as shown in Fig. 9,. and the space between them at this point is sufficient to permit the blades stopped by the abutment to fall over the point of the post 34. It will be understood that the wheels 18 and 24 are both driven by the belts 28. v

For the purpose of adiusting the brush toward the presenting wheel after it has become worn, the bracket 5 carrying the brush is provided with an adjusting screw '40 threaded through the bracket and abutting against the main frame of the machine un der the bracket.

In view of the foregoing, a detailed description of the operation of the machine is thought to be unnecessary and is therefore omitted in the interest'of brevity and clearness.

Changes and variations may be made in Copies of this patent may be obtained for five cents each, by

floor under the belts.

which run a tion is carried. into effect. The invention, therefore, is not to be restricted to the precise details of the structure shown and described. I

What is claimed is:

1. In a blade polishing machine, the combination with a polishing brush, of'a wheel and cooperating member for supporting and presenting blades to the brush, and a wheel and a stationary guide for feeding blades to the presenting means.

2. In a blade polishing machine, the combination with a polishing brush, ofa wheel anda pair of cooperating belts for presenting blades to the brush, and a wheel and stationary guide for feeding blades to the presenting means.

3. In a blade polishing machine, the combination with a polishing brush, of means including a wheel having a central groove to receive blades and shallow side grooves in pair of belts overlying the'edges the central groove for present the brush, and means including a wheel and stationary guide for feeding blades to the presenting means.

4. In a blade polishing machine, the comnation With a ing support for brush, a traveling blades to the presenting means, and a stack ing device including a post adapted to engage perforations in ered by the presenting means after passing the brush. I

Intestimony whereof, I have signed my name to this specification in the presence of two subscribing witnesses.

.JOHN E. DREW.

of blades in ing blades to Witnesses:

SYDNEY I. Pnnsoorr, FRANK H. VIoK, Jr.

addressing the Commissioner of Patents,

Washington, D. O. R

polishingbrush, of a travelpresenting blades to the;

member for feeding the blades when deliv-' 

